Thank you, Mike, I hadn't come across this one. I have been searching newspapers using Find My Past.

I've used the BNA site extensively, it's good that you can subscribe for a short period for a fair payment. You can also use their search engine f-o-c, and hence get an idea of what's there and where/when, before actually signing-up, so with this prior-preparation can download scores of pages in just a few days subscription if funds are tight. Probably more relevant to you Stephanie, I've also used the BNA via a trial subscrition to the FMP site, and have found the FMP site doesn't actually give access to all the full coverage of newspapers as the main BNA site does, especially the more recent issues.
The BNA site's search engine is a classic case of "less gives more" results. If you feel you've not found the same articles that Mike found, and am wondering why not, then this old post may possibly help you, I do hope so.
Happy hunting.
http://forum.forest-of-dean.net/index.php?id=36876

I suspect that site's Facebook pages may be particularly helpful, altho clearly the fact that most Land girls will have passed-away by now is a problem.

My initial advice would have been to use the local newspapers, both by writing letters requesting information from readers, and also by searching old issues from the time, as Mike has kindly done. However they would have only given quite scant coverage during wartime due to censorship. Don't forget that not all our local newspapers are online, eg Cinderford library carrys the DF Mercury etc, see
http://www.gloucestershire.gov.uk/media/1904/gloucestershire_newspapers_2016_v1-24402.pdf

This censorship included the wartime issues of Ordnance Survey Maps, which don't show munitions factories for example. Whether such maps would show somethig as relatively small and "temporary" as a WLA Hostel is debatable, certainly I cannot see any hint of it on this map, despite zooming-ito it with my mouse.
http://maps.nls.uk/view/101453664

On a more general level, as I'm sure you've already found, the BBC site has several pages of recollections of life with the WLA, some of which refer in detail to the hostel at Dumbleton Hall in the north of Gloucestershire, now an impressive looking hotel. Apparently there were almost 700 WLA hostels across the UK during WW2 !
Sadly not easy to search thro' the large number of posts on this site.
eg
http://www.bbc.co.uk/history/ww2peopleswar/categories/c1171/
http://www.bbc.co.uk/history/ww2peopleswar/stories/02/a4392902.shtml

https://en.wikipedia.org/wiki/Dumbleton#Dumbleton_Hall

Sadly I don't currently have access to my FoD reference and old-photo books, but I recommend looking-up "The Forest of Dean in Wartime" by Humphrey Phelps, pub 1995, it may possibly help you.

The Sungreen site has a few photos of Land Girls, but at Bream, not Oaklands.
https://www.sungreen.co.uk/_Bream/BreamCourtFarm1947.htm

Hoping this helps in some way, Jeff.

BNA Cheltenham Chronicle - Saturday 21 April 1945

LOCAL LAND GIRLS ALL BACK AT WORK

The North Gloucester shire Land Army girls who were on strike on Friday as a protest against the non-granting of gratuities by the Government returned to work on Saturday. The strike involved girls from W.L.A. hostels at 1 Dumbleton Hall, Southam Priory, Wycks Elm, Tetbury, and Oaklands Park. These hostels were visited on Friday by Mr. H. A. Myring, a representative of the Gloucestershire WA.E.C.; Mr. H. Collison, County Organiser of the Agricultural Workers' Union, and Mrs. Heydeman, County Secretary of the W.L.A. After these speakers had addressed the strikers and answered questions, the girls agreed to return to work, and some of them resumed straight away.

Many thanks
Stephanie